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  72 discs into 68

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Author Topic:   72 discs into 68
Fastback68
Gearhead

Posts: 1315
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 01-01-2002 09:47 PM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Just a quickie ... I searched the archives but couldn't find what I was looking for. Fellow M&Mer and Manila resident Ed is waving a set of '72 Mustang discs under my nose. These are an easy swap into a '68 with drums, right?
Thanks!
Simon

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Lennie
Journeyman

Posts: 40
From: Denton, TX, USA
Registered: Dec 2001

posted 01-01-2002 11:21 PM     Click Here to See the Profile for Lennie   Click Here to Email Lennie     Edit/Delete Message   Reply w/Quote
If it's the same amount of work as switching in a set of 72 Courgar disk brakes, the answer is yes. I'm even lowering the upper control arm location by 1" to set in some negative camber along with changing springs, perches, shocks, tie rod ends, etc.

I think you'll also need the power brake booster and new master cylinder for the conversion, but I'm not sure. I did it on mine and it was very straight forward.

This is something that can be done in a day or two if you know what you're doing and have spring compressors and a few other hand tools.

You will want to make sure that the rotors have enough meat left in them so that they can be turned before installing them and also check the races and replace them if necessary along with new inner and outer bearings and oil seals in the rotors. Also I'd install new brake pads and make sure that the calipers are in good condition.

If you're going to change everything over, make sure you start will all new or serviceable parts.

Last but not least, after you've made the conversion, I'd take the car to an alignment shop to make sure everything is in spec as far as alignment is concerned.

Lennie

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bluetech
Gearhead

Posts: 252
From: Far and Away
Registered: Feb 2001

posted 01-02-2002 01:52 AM     Click Here to See the Profile for bluetech   Click Here to Email bluetech     Edit/Delete Message   Reply w/Quote
I sure hope it fits, then both of us will be really happy!

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SteveLaRiviere
Administrator

Posts: 30756
From: Saco, Maine
Registered: May 99

posted 01-02-2002 10:15 AM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
Very interesting. The tie rods interchange too?

------------------

'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC

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RagTop
Journeyman

Posts: 18
From: Pleasanton, CA, USA
Registered: Feb 2001

posted 01-04-2002 03:30 PM     Click Here to See the Profile for RagTop   Click Here to Email RagTop     Edit/Delete Message   Reply w/Quote
I swapped 72 disc brake spindles into my 69 manual 4 wheel drum convertible. The 68 and 69 front ends are the same. You'll definitely need new tie rod ends since the 72 spindles are larger. You'll also need a new master cylinder that has a larger reservoir for the front brakes. I installed mine as a manual system but I would recommend adding a power booster (an upcoming project for me). NPD has a conversion booster and MC for $320. You also need to install a proportioning valve to adjust pressure to the front and rear. You don't need a spring compressor unless you plan to replace the spring saddles and insulators while you are there. I replaced the lower arms and upper ball joints as well as new end links without the use of a compressor. BTW, be prepared to really whack the old spindles a shot to get them off the car. I was amazed at how hard I had to hit those things. A "pickle fork" might be useful. Good luck.

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Regards,
RagTop
69 Meadowlark Yellow convertible, 302(308)/4V
69 Royal Maroon SportsRoof, 351W(363)/4V
00 Pewter Camaro Z28, LS1

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PonyDoc
Journeyman

Posts: 84
From: Ft. Lauderdale
Registered: Jun 2001

posted 01-06-2002 07:43 PM     Click Here to See the Profile for PonyDoc   Click Here to Email PonyDoc     Edit/Delete Message   Reply w/Quote
If you need to shim the new tie rod ends, see Mustang Steve for the shim. The 74 Maverick master cylinder works well for the swap. The lines are on the correct side of the MC and they are the right fitting size. And they are fairly cheap and easy to find at parts stores. New bearings are also very easy to get. The 70-73 Mustang/ Granada/Monarch/Comet/Maverick all used the same disc set up, and they swap easily. You may also want to look at the 67 disc hose to the calipers, as they come in at the right angle.

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Fastback68
Gearhead

Posts: 1315
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 01-07-2002 01:52 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Thanks all! The deal's going ahead, and Ed's throwing in the MC, tie rod ends, spindles, proportioning valve, and power booster I haven't seen it yet, but I've got my fingers crossed the power booster will squeeze into a '68.
Simon

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bluetech
Gearhead

Posts: 252
From: Far and Away
Registered: Feb 2001

posted 01-07-2002 02:08 AM     Click Here to See the Profile for bluetech   Click Here to Email bluetech     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Fastback68:
Thanks all! The deal's going ahead, and Ed's throwing in the MC, tie rod ends, spindles, proportioning valve, and power booster I haven't seen it yet, but I've got my fingers crossed the power booster will squeeze into a '68.
Simon

"Necessity breeds Invention"

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